1 // SPDX-License-Identifier: GPL-2.0+
3 // ALSA Soc Audio Layer - S3C2412 I2S driver
9 // Copyright (c) 2007, 2004-2005 Simtec Electronics
23 #include "regs-i2s-v2.h"
24 #include "s3c2412-i2s.h"
26 #include <linux/platform_data/asoc-s3c.h>
56 	s3c2412_i2s.iis_cclk = devm_clk_get(dai->dev, "i2sclk");  in s3c2412_i2s_probe()
90 	struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);  in s3c2412_i2s_hw_params()  local
95 	iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_hw_params()
107 	writel(iismod, i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_hw_params()
116 	struct s3c_i2sv2_info *i2s = snd_soc_component_get_drvdata(component);  in s3c2412_i2s_suspend()  local
119 	if (component->active) {  in s3c2412_i2s_suspend()
120 		i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_suspend()
121 		i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON);  in s3c2412_i2s_suspend()
122 		i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR);  in s3c2412_i2s_suspend()
126 		iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_suspend()
143 	struct s3c_i2sv2_info *i2s = snd_soc_component_get_drvdata(component);  in s3c2412_i2s_resume()  local
146 		component->active, i2s->suspend_iismod, i2s->suspend_iiscon);  in s3c2412_i2s_resume()
148 	if (component->active) {  in s3c2412_i2s_resume()
149 		writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON);  in s3c2412_i2s_resume()
150 		writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_resume()
151 		writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR);  in s3c2412_i2s_resume()
154 		       i2s->regs + S3C2412_IISFIC);  in s3c2412_i2s_resume()
157 		writel(0x0, i2s->regs + S3C2412_IISFIC);  in s3c2412_i2s_resume()
195 	.name		= "s3c2412-i2s",
204 	struct s3c_audio_pdata *pdata = dev_get_platdata(&pdev->dev);  in s3c2412_iis_dev_probe()
207 		dev_err(&pdev->dev, "missing platform data");  in s3c2412_iis_dev_probe()
208 		return -ENXIO;  in s3c2412_iis_dev_probe()
212 	s3c2412_i2s.regs = devm_ioremap_resource(&pdev->dev, res);  in s3c2412_iis_dev_probe()
213 	if (IS_ERR(s3c2412_i2s.regs))  in s3c2412_iis_dev_probe()
214 		return PTR_ERR(s3c2412_i2s.regs);  in s3c2412_iis_dev_probe()
216 	s3c2412_i2s_pcm_stereo_out.addr = res->start + S3C2412_IISTXD;  in s3c2412_iis_dev_probe()
217 	s3c2412_i2s_pcm_stereo_out.filter_data = pdata->dma_playback;  in s3c2412_iis_dev_probe()
218 	s3c2412_i2s_pcm_stereo_in.addr = res->start + S3C2412_IISRXD;  in s3c2412_iis_dev_probe()
219 	s3c2412_i2s_pcm_stereo_in.filter_data = pdata->dma_capture;  in s3c2412_iis_dev_probe()
221 	ret = samsung_asoc_dma_platform_register(&pdev->dev,  in s3c2412_iis_dev_probe()
222 						 pdata->dma_filter,  in s3c2412_iis_dev_probe()
229 	ret = s3c_i2sv2_register_component(&pdev->dev, -1,  in s3c2412_iis_dev_probe()
241 		.name = "s3c2412-iis",
249 MODULE_DESCRIPTION("S3C2412 I2S SoC Interface");
251 MODULE_ALIAS("platform:s3c2412-iis");